#63CFFB#63CFFB

#63CFFB is a light, moderate cyan. Relative luminance 0.542; OKLCH L 80.8% C 0.117 H 227.6°. Best body text is #000000 at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#63CFFB
RGB	rgb(99, 207, 251)
HSL	hsl(197, 95%, 69%)
HSV	hsv(197, 61%, 98%)
CMYK	cmyk(60.6%, 17.5%, 0%, 1.6%)
CIE-LAB	lab(78.60, -18.46, -30.88)
CIE-LCH	lch(78.60, 35.98, 239.13°)
OKLab	oklab(80.79% -0.0786 -0.0862)
OKLCH	oklch(80.79% 0.117 227.6)
XYZ	xyz(44.8642, 54.2388, 99.3529)
Luminance	0.5424 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CFFB #FB8F63

analogous

#63FBDB #63CFFB #6383FB

triadic

#63CFFB #FB63CF #CFFB63

tetradic

#63CFFB #DB63FB #FB8F63 #83FB63

square

#63CFFB #DB63FB #FB8F63 #83FB63

split-complementary

#63CFFB #FB6383 #FBDB63

monochromatic

#069FDE #27BDF9 #63CFFB #9FE1FD #DAF4FE

Accessibility & contrast

On white

1.77

#63CFFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.85

#63CFFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CFFB

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CFFB	#FFFFFF	#000000	##000000
##63CFFB	1.00	1.77	11.85	11.85
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.85	21.00	1.00	1.00
##000000	11.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8CCFD

Deuteranopia (green-blind)

#A2BCFA

Tritanopia (blue-blind)

#00DCDD

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #63cffb;
/* rgb */ color: rgb(99, 207, 251);
/* oklch */ color: oklch(80.8% 0.117 227.6);

Tailwind

colors: {
  custom: {
    50: '#9cddfc',
    500: '#63cffb',
    950: '#000000',
  },
}

SCSS

$custom: #63cffb;
$custom-light: #9cddfc;
$custom-dark: #000000;

JSON

{
  "hex": "#63cffb",
  "rgb": {
    "r": 99,
    "g": 207,
    "b": 251
  },
  "hsl": {
    "h": 197.368,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.80788,
    "c": 0.11666,
    "h": 227.6
  },
  "luminance": 0.54243
}

Semantic roles & 50–950 ramp

primary

#63CFFB

secondary

#D55E2D

accent

#4200E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #63CFFB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →